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85548061 = 499171439
BaseRepresentation
bin1010001100101…
…01110000011101
312221222021212201
411012111300131
5133400014221
612253331501
72056101154
oct506256035
9187867781
1085548061
1144320585
1224796b91
1314953771
14b50c59b
15779c891
hex5195c1d

85548061 has 4 divisors (see below), whose sum is σ = 85720000. Its totient is φ = 85376124.

The previous prime is 85548059. The next prime is 85548077. The reversal of 85548061 is 16084558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85548061 - 21 = 85548059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85548061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85548031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85221 + ... + 86218.

It is an arithmetic number, because the mean of its divisors is an integer number (21430000).

Almost surely, 285548061 is an apocalyptic number.

It is an amenable number.

85548061 is a deficient number, since it is larger than the sum of its proper divisors (171939).

85548061 is a wasteful number, since it uses less digits than its factorization.

85548061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171938.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 85548061 is about 9249.2194805832. The cubic root of 85548061 is about 440.6259359234.

The spelling of 85548061 in words is "eighty-five million, five hundred forty-eight thousand, sixty-one".

Divisors: 1 499 171439 85548061